1999 |
65%
|
2005 |
72%
|
2010 |
57%
|
1996 |
57%
|
2011 |
56%
|
2000 |
45%
|
2016 |
56%
|
2018 |
58%
|
2017 |
68%
|
2005 |
63%
|
2006 |
63%
|
2018 |
57%
|
1997 |
58%
|
2012 |
13%
|
1991 |
46%
|
2009 |
72%
|
2000 |
62%
|
2000 |
67%
|
2000 |
67%
|
1998 |
31%
|
2005 |
43%
|
2007 |
44%
|